UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 212

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

8.5.3 Two pulse widths measurement by free-running counter
/******************************************************************************/
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/******************************************************************************/
#pragma sfr
#pragma EI
#pragma DI
#pragma interrupt INTTM00 intervalint rb2
#pragma interrupt INTTM01 intervalint2 rb2
void main(void)
{
}
210
unsigned int data[6];
unsigned int length,length2;
PCC = 0x0;
data[0] = 0;
data[1] = 0;
data[2] = 0;
data[3] = 0;
data[4] = 0;
data[5] = 0;
PM7.0 = 1;
PM7.1 = 1;
TMMK01 = 0;
TMMK00 = 0;
PRM0 = 0b11110010;
CRC0 = 0b00000101;
TMC0 = 0b00000100;
EI();
while(1){
}
Two-pulse-width measurement sample by free-running
Measurement results to be up to 16 bits and not checked for errors
data[0]: End flag
data[1]: Measurement results (pulse width)
data[2]: Previous read value
data[3]: End flag
data[4]: Measurement results (pulse width)
data[5]: Previous read value
Result area at TI00 side
Result area at TI01 side
Timer 0 operation sample
if(data[0] != 0)
{
}
if(data[3] != 0)
{
}
TMMK01 = 1;
length = data[1];
data[0] = 0;
TMMK01 = 0;
TMMK00 = 1;
length2 = data[4];
data[3] = 0;
TMMK00 = 0;
CHAPTER 8 16-BIT TIMER/EVENT COUNTER 0
User’s Manual U14046EJ5V0UD
/* Data area */
/* Set high-speed operation mode */
/* Clear data area */
/* Set port */
/* Set P70 as input */
/* Set P71 as input */
/* Set interrupt */
/* Cancel INTTM01 interrupt mask */
/* Cancel INTTM00 interrupt mask */
/* Set timer 0 */
/* Both rising and falling edges */
/* Count clock is fx/2^6
/* Set CR00 and CR01 to capture register */
/* Start in free-run mode */
/* Dummy loop */
/* TI00 measurement completion check */
/* TI01 measurement completion check */
/* INTTM01 interrupt prohibited for
/* Read measurement results */
/* Clear end flag */
/* Exclusive operation completed */
/* INTTM00 interrupt prohibited for
/* Read measurement results */
/* Clear end flag */
/* Exclusive operation completed */
exclusive operation */
exclusive operation */
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/